551123205 has 8 divisors (see below), whose sum is σ = 881797152. Its totient is φ = 293932368.

The previous prime is 551123191. The next prime is 551123207. The reversal of 551123205 is 502321155.

It is a happy number.

551123205 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 551123205 - 2¹⁰ = 551122181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551123207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18370759 + ... + 18370788.

It is an arithmetic number, because the mean of its divisors is an integer number (110224644).

Almost surely, 2^551123205 is an apocalyptic number.

It is an amenable number.

551123205 is a deficient number, since it is larger than the sum of its proper divisors (330673947).

551123205 is a wasteful number, since it uses less digits than its factorization.

551123205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36741555.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 551123205 is about 23476.0133966566. The cubic root of 551123205 is about 819.8786281793.

The spelling of 551123205 in words is "five hundred fifty-one million, one hundred twenty-three thousand, two hundred five".